• Happenings – 2012 Jun 30

    Updated: 2012-06-30 18:09:22
    In contrast to recent weeks, this has not been a slow week. It has, however, been a week of tunnel vision. I’ve really only done two things; even my alter-ego the kid has been short-changed. I’ve spent a little time reading about probability distributions (t, chi-square, and F) derived from the normal distribution. Unfortunately, as [...]

  • Math Girls

    Updated: 2012-06-28 19:42:48
    Two girls. One is older and more experienced. The other is younger and more naive. Which of these two girls will the unnamed male narrator chose? What a great plot for a math book. I am talking about Hiroshi Yuki’s book Math Girls. The plot allows the author to discuss [...]

  • Picasso’s Diagnosis

    Updated: 2012-06-27 17:12:24
    I have a problem with my binocular vision. The muscles that are responsible for moving my eyes outwards are very weak, much weaker than the muscles that move my eyes inwards. When I am very tired, I can’t focus on people or things that are far away. I start seeing doubled [...]

  • Happenings – 2012 Jun 23

    Updated: 2012-06-23 18:15:19
    Yet another slow weekend, last week. Yes, a technical post went out… yes, my alter ego the kid played with stellar interiors – it’s been a while – and with ARMA (autoregressive moving average) time series modeling – it’s been years. But other than that, all I did was to look at a little control [...]

  • happenings – 2012 Jun 16

    Updated: 2012-06-16 18:09:35
    It has been another slow week for mathematics… but I have a new air conditioner installed in the great room, which is my study. It will get a trial by fire today: the National Weather Service forecast calls for 101° today. There was one earthquake in the past week within a couple of hundred miles [...]

  • Math problem solving strategies

    Updated: 2012-06-13 19:57:07
    Learn math problem solving strategies here and be able to tackle on your own a great variety of challenging math problems

  • Happenings – 2012 Jun 9

    Updated: 2012-06-09 17:41:10
    It’s been a really slow week. There have been a couple of earthquakes (3.6 and 2.9)… the 1st about 15 miles from San Jose… the 2nd under the ocean about 30 miles west of San Francisco City Hall. This is 2 so far in June. I’m still surprised at how rare magnitude 2.5 events are [...]

  • Making Connections

    Updated: 2012-06-08 20:25:01
    SEAHOP created a practice puzzle, called “Making Connections,” that includes me. It seems I am making connections. a2a_linkname="Making Connections"; a2a_linkurl="http://blog.tanyakhovanova.com/?p=407";

  • Vickie Kearn – Inspired by Math #8

    Updated: 2012-06-03 19:06:38
    About Vickie Kearn: (From The Princeton University Press Blog.) "You and math – one of the greatest love/hate relationships of all time. What is it about the subject that excites us yet sends a chilling tingle down our spine at the same time? How can it be so precise, yet so fickle? We may never [...]

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